Filing Details

Accession Number:
0001104659-20-081224
Form Type:
4
Zero Holdings:
No
Publication Time:
2020-07-06 16:15:57
Reporting Period:
2020-07-02
Accepted Time:
2020-07-06 16:15:57
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1442836 Mersana Therapeutics Inc. MRSN Pharmaceutical Preparations (2834) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1782805 Ashish Mandelia C/O Mersana Therapeutics, Inc.
840 Memorial Drive
Cambridge MA 02139
Vp, Controller No Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2020-06-30 3,383 $4.87 3,383 No 5 P Direct
Common Stock Disposition 2020-07-02 3,383 $22.49 0 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 5 P Direct
No 4 S Direct
Footnotes
  1. Transaction made pursuant to Issuer's 2017 Employee Stock Purchase Program ("ESPP"), for the ESPP purchase period of January 1, 2020 through June 30, 2020.
  2. In accordance with the ESPP, these shares were purchased at a price equal to 85% of the closing price of Issuer's common stock December 31, 2019.
  3. Transaction made pursuant to the Reporting Person's company-approved trading plan under Rule 10b5-1.